... galvanized,elctro-galvanized, painting,etc..Features: Ventilated ,slippery-preventing,strength-bearing, heat dissipation , explosion-proof , beautiful and durable, easy to ... clean, convenient installation.Grating Dimension Load Bearing Flat Bar sizeThickness≥3mm, depth ≥19mm19X3,19X5,20X3, 20X5, ... steel grating Ditch cover plate Ladder pedal (foot pedals) high quality steel grate